Work has a really old pc that's not working and they wanted me to look at. It's a compaq deskpro with celeron processor.
When I plug in power cable and press the start button on the tower it doesn't make any sounds from psu or fans. nothing seems to happen except a small green light comes on on the mobo. No signal comes up on the monitor.
I've made sure that all connectors are in tight, and they seems to be.
To you does it sound like the psu has packed up? or any other advice?
Pookie - Try unplugging hard drive cable and power from hard drive, same for floppy drive and CDROM if present. Remove any cards in the system except the video card if present. Make sure memory is seated correctly, then try and boot and see what happens, if you get the PC to boot, connect each card and try again, then hard drive, floppy drive etc.
If no boot, try different memory and video card, if still nothing, motherboard or PSU would be your best bet as to nature of problem.